GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Oxygen and Helium
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Nitrogen and Carbon
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Hydrogen and Helium
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Lithium and Oxygen
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Detailed explanation-1: -But more than 13 billion years ago, following the big bang, the early universe was hot, and all that existed were a few types of atoms, mostly helium and hydrogen. As atoms combined to form the first molecules, the universe was finally able to cool and began to take shape.
Detailed explanation-2: -During the formation of the universe some 14 billion years ago in the so-called ‘Big Bang’, only the lightest elements were formed – hydrogen and helium along with trace amounts of lithium and beryllium.
Detailed explanation-3: -Hydrogen is the most abundant element in the universe, accounting for about 75 percent of its normal matter, and was created in the Big Bang. Helium is an element, usually in the form of a gas, that consists of a nucleus of two protons and two neutrons surrounded by two electrons.
Detailed explanation-4: -Most of the hydrogen and helium in the Universe were created in the moments after the Big Bang. Heavier elements came later. The explosive power of supernovae creates and disperses a wide range of elements.